Module:GetJSON
From AlternateWiki
Documentation for this module may be created at Module:GetJSON/doc
local p = {}
p.main = function(frame)
local m = {}
m.root = mw.loadJsonData(frame.args[1])
-- Function to split the key by "."
local function splitKey(key)
local keys = {}
for subkey in string.gmatch(key, "([^%.]+)") do
table.insert(keys, subkey)
end
return keys
end
-- Function to get the value from the nested table
local function getValueByKeys(root, keys)
local value = root
for _, key in ipairs(keys) do
if value[key] == nil then
return nil
end
value = value[key]
end
-- If the value is a table and contains json_file and json_key
if type(value) == "table" and value.json_file and value.json_key then
local newRoot = mw.loadJsonData(value.json_file)
local newKeys = splitKey(value.json_key)
return getValueByKeys(newRoot, newKeys)
end
return value
end
local keys = splitKey(frame.args[2])
local value = getValueByKeys(m.root, keys)
if value ~= nil then
if type(value) == "table" then
if frame.args[4] == "keys" then
-- Return the keys of the table
local str = ""
for k, _ in pairs(value) do
str = str .. k .. ";"
end
return frame:preprocess(str:sub(1, -2))
else
-- Return the values of the table
local str = ""
for _, v in pairs(value) do
str = str .. v .. ";"
end
return frame:preprocess(str:sub(1, -2))
end
end
return frame:preprocess(value)
else
if frame.args[3] ~= nil then
return frame.args[3]
else
return ""
end
end
end
return p